Going from Heathrow to Bath, Bath to Southampton, which car company to hire? Hotel Info?

[gam888]

We will be flying into the Heathrow airport a day before our cruise starts. Would like to visit Bath. Thinking of hiring a car transfer for the 2 of us. We are flying to Heathrow airport from an overnight flight from Canada, so would not consider taking the train or coach after that. Could anyone suggest a reasonable car transfer company that we can hire to take us from Heathrow airport to a hotel in Bath. And the next day from Bath to Southampton to start our cruise.

Any reasonable clean hotels in Bath that is within walking distance to visit the major sites in Bath you can recommend? 

What are the must see in Bath?

Thank you.

[matamanoa]

I answered this question on the Princess forum.